One \One\ (w[u^]n), a. [OE. one, on, an, AS. [=a]n; akin to D.
een, OS. [=e]n, OFries. [=e]n, [=a]n, G. ein, Dan. een, Sw.
en, Icel. einn, Goth. ains, W. un, Ir. & Gael. aon, L. unus,
earlier oinos, oenos, Gr. o'i`nh the ace on dice; cf. Skr.
[=e]ka. The same word as the indefinite article a, an. [root]
299. Cf. 2d A, 1st An, Alone, Anon, Any, None,
Nonce, Only, Onion, Unit.]
1. Being a single unit, or entire being or thing, and no
more; not multifold; single; individual.
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The dream of Pharaoh is one. --Gen. xli.
25.
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O that we now had here
But one ten thousand of those men in England.
--Shak.
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2. Denoting a person or thing conceived or spoken of
indefinitely; a certain. "I am the sister of one Claudio"
[--Shak.], that is, of a certain man named Claudio.
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3. Pointing out a contrast, or denoting a particular thing or
person different from some other specified; -- used as a
correlative adjective, with or without the.
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From the one side of heaven unto the other. --Deut.
iv. 32.
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4. Closely bound together; undivided; united; constituting a
whole.
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The church is therefore one, though the members may
be many. --Bp. Pearson
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5. Single in kind; the same; a common.
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One plague was on you all, and on your lords. --1
Sam. vi. 4.
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6. Single; unmarried. [Obs.]
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Men may counsel a woman to be one. --Chaucer.
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Note: One is often used in forming compound words, the
meaning of which is obvious; as, one-armed, one-celled,
one-eyed, one-handed, one-hearted, one-horned,
one-idead, one-leaved, one-masted, one-ribbed,
one-story, one-syllable, one-stringed, one-winged, etc.
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All one, of the same or equal nature, or consequence; all
the same; as, he says that it is all one what course you
take. --Shak.
One day.
(a) On a certain day, not definitely specified, referring
to time past.
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One day when Phoebe fair,
With all her band, was following the chase.
--Spenser.
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(b) Referring to future time: At some uncertain day or
period in the future; some day.
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Well, I will marry one day. --Shak.
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The Collaborative International Dictionary of English v.0.48:

All \All\, adv.
1. Wholly; completely; altogether; entirely; quite; very; as,
all bedewed; my friend is all for amusement. "And cheeks
all pale." --Byron.
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Note: In the ancient phrases, all too dear, all too much, all
so long, etc., this word retains its appropriate sense
or becomes intensive.
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2. Even; just. (Often a mere intensive adjunct.) [Obs. or
Poet.]
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All as his straying flock he fed. --Spenser.
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A damsel lay deploring
All on a rock reclined. --Gay.
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All to, or All-to. In such phrases as "all to rent," "all
to break," "all-to frozen," etc., which are of frequent
occurrence in our old authors, the all and the to have
commonly been regarded as forming a compound adverb,
equivalent in meaning to entirely, completely, altogether.
But the sense of entireness lies wholly in the word all
(as it does in "all forlorn," and similar expressions),
and the to properly belongs to the following word, being a
kind of intensive prefix (orig. meaning asunder and
answering to the LG. ter-, HG. zer-). It is frequently to
be met with in old books, used without the all. Thus
Wyclif says, "The vail of the temple was to rent:" and of
Judas, "He was hanged and to-burst the middle:" i. e.,
burst in two, or asunder.
All along. See under Along.
All and some, individually and collectively, one and all.
[Obs.] "Displeased all and some." --Fairfax.
All but.
(a) Scarcely; not even. [Obs.] --Shak.
(b) Almost; nearly. "The fine arts were all but
proscribed." --Macaulay.
All hollow, entirely, completely; as, to beat any one all
hollow. [Low]
All one, the same thing in effect; that is, wholly the same
thing.
All over, over the whole extent; thoroughly; wholly; as,
she is her mother all over. [Colloq.]
All the better, wholly the better; that is, better by the
whole difference.
All the same, nevertheless. "There they [certain phenomena]
remain rooted all the same, whether we recognize them or
not." --J. C. Shairp. "But Rugby is a very nice place all
the same." --T. Arnold. -- See also under All, n.
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